Changing the installation directory has no effect

The installation directory can’t be changed for the standalone installers when run from the command line with /S and /D options. For example, running the qt-win-opensource-4.8.3-vs2010.exe and qt-win-opensource-4.8.3-vs2008.exe silently (with the /S option) will install the binaries to the same directory. Setting the installation directory with /D has no effect. So this does not work:

> qt-win-opensource-4.8.3-vs2008.exe /S /D=C:\Qt\4.8.3-vs2008

It’s the same for commercial installers.